.header_1 {
    height: 66px;
    background-color: white;
}

.fl div {
    float: left;
}

.fl :nth-child(0) {
    float: left;
}

.fl :nth-child(1) {
    float: left;
}

.fl img {
    margin: -10px 0px 0px 50px;
    width: 150px;
    height: 120px;
    float: left;
    text-align: center;
}

.fl .column {
    margin-left: -50px
}

.fl .column li {
    margin: 18px 21px 18px 21px;
    float: left;
    font-size: 20px;
    text-align: center;
}

.fr {
    width: 800px;
    height: 150px;
}

.fr .search {
    width: 460px;
    height: 35px;
    margin: 18px 21px 18px 21px;
    float: left;
    font-size: 16px;
    text-align: center;
}

.fr .search .text {
    width: 400px;
    height: 36px;
    float: left;
    border: 2px solid #636060;
    color: #ccc;
    text-indent: 10px;
}

.fr .search .btn {
    margin-top: -1px;
    margin-left: -2px;
    float: left;
    background-color: #656363;
    border: 2px solid #656363;
    font-size: 14px;
    color: #fff;
}

.fr .user {
    margin-top: 18px;
    float: left;
    width: 250px;
}

.user ul li {
    margin: 0 21px 18px 0;
    float: left;
    font-size: 20px;
}

.user :nth-child(4) {
    display: block;
    width: 30px;
    height: 30px;
    border: 1px solid #5b5858;
    text-align: center;
    line-height: 30px;
    background-color: #cdcaca;
    border-radius: 50%;
}

.user_bg {
    position: relative;
    height: 200px;
    background-color: aquamarine;
}

.user_bg .user_self {
    display: flex;
    justify-content: space-around;
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 84px;
    background-color: bisque;
}

.user_bg .user_self .user_head {
    width: 78px;
    height: 78px;
    background-color: aqua;
    border: 1 solid rgb(14, 14, 14);
    border-radius: 50%;
    margin-left: 15px;
    line-height: 84px;
    text-align: center;
    margin-top: 4px;
}

.user_message ul li {
    display: block;
    width: 1200px;
    height: 36px;
    background-color: aqua;
    line-height: 40px;
}

.user_message ul :nth-child(1) {
    margin-top: 6px;
}

.nav {
    height: 60px;
    background-color: white;
    border-radius: 0 0 5px 5px;
}

.nav div {
    float: left;
}

.nav .nav_column ul li {
    display: block;
    width: 100px;
    height: 60px;
    float: left;
    background-color: aqua;
    line-height: 60px;
    text-align: center;
    margin: 0 5px 0 5px;
}

.nav .nav_column ul li a:hover {
    text-decoration: none;
}

.search {
    width: 200px;
    height: 35px;
    float: left;
    font-size: 20px;
    text-align: center;
    margin: 12px 0 0 10px;
}

.nav .search .text {
    width: 150px;
    height: 36px;
    float: left;
    border: 2px solid #b3b1b1;
    color: #ccc;
    border-right: none;
    border-radius: 20px 0 0 20px;
    font-size: 12px;
    text-indent: 10px;
}

.nav .search .btn {
    margin-top: -1px;
    margin-left: -2px;
    float: left;
    border: 2px solid #b3b1b1;
    border-left: none;
    color: #b3b1b1;
    background-color: white;
    border-radius: 0 20px 20px 0;
}

.nav .my_data {
    float: right;
}

.nav .my_data ul li {
    width: 60px;
    height: 60px;
    background-color: aqua;
    color: #b3b1b1;
    display: block;
    float: left;
    line-height: 60px;
    text-align: center;
}